Study on process of nutrient release during the decay of Ulva Prolifera
LIU Xiang-qing1,2,3, WANG Zong-ling2,3, XIN Ming2, LI Yan2, HE Xiu-ping2
1. College of Environmental Science and Engineering, Ocean University of China, Qingdao 266100, China;
2. The First Institute of Oceanography, State Oceanic Administration, Qingdao 266061, China;
3. Laboratory of Marine Ecology and Environmental Science, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266071, China
Abstract：The decaying process of floating Ulva prolifera was simulated in laboratory to study laws of the nutrient release.Results showed that the weight and chlorophyll content of U.prolifera had a declining trend,respectively.Floating and cultured U.prolifera weight decreased to 0.46 g and 0.79 g at 12 d,respectively.The chlorophyll content of floating and cultured U.prolifera also decreased to 0.64 mg/g and 0.99 mg/g at 12 d.The phosphorus and total inorganic nitrogen (DIN) concentrations in the experimental group had an upward trend after the first drop.Besides,increased amount of phosphorus and DIN concentrations in the floating U.prolifera experimental group was higher than the cultured U.prolifera group.At 12 d,the phosphorus and DIN concentrations in the floating U.prolifera experimental group reached to 3.95 μmol/L and 76.55 μmol/L.Ammonia nitrogen was released to water from 6th day in the floating U.prolifera experimental group,leading to the rise of DIN.The decay of a large amount of floating U.prolifera resulted in oxygen deficiency in water and released large amounts of nutrients,leading to deterioration of water quality.Therefore,floating U.prolifera should be cleaned up quickly.
LIU Xiang-qing,WANG Zong-ling,XIN Ming et al. Study on process of nutrient release during the decay of Ulva Prolifera[J]. Marine Environmental Science, 2016, 35(6): 801-805,813.
COMMENDATORE M G,ESTEVES J L,COLOMBO J C.Hydrocarbons in coastal sediments of Patagonia,Argentina:levels and probable sources[J].Marine Pollution Bulletin,2000,40(11):989-998.
[2]
VAN ENGELAND T,SOETAERT K,KNUIJT A,et al.Dissolved organic nitrogen dynamics in the North Sea:a time series analysis (1995-2005)[J].Estuarine,Coastal and Shelf Science,2010,89(1):31-42.
[3]
LIU D Y,KEESING J K,HE P M,et al.The world's largest macroalgal bloom in the Yellow Sea,China:formation and implications[J].Estuarine,Coastal and Shelf Science,2013,129:2-10.
WANG X C,SUN S,MA H Q,et al.Sources and distribution of aliphatic and polyaromatic hydrocarbons in sediments of Jiaozhou Bay,Qingdao,China[J].Marine Pollution Bulletin,2006,52(2):129-138.
BADR E S A,TAPPIN A D,ACHTERBERG E P.Distributions and seasonal variability of dissolved organic nitrogen in two estuaries in SW England[J].Marine Chemistry,2008,110(3/4):153-164.
LIU D Y,KEESING J K,XING Q G,et al.World's largest macroalgal bloom caused by expansion of seaweed aquaculture in China[J].Marine Pollution Bulletin,2009,58(6):888-895.
[12]
LIN X J,HUANG B Q,HONG H S,et al.Vertical characteristics and diel variation of chlorophyll a in the typical areas of East China Sea and Southern Yellow Sea[J].Marine Sciences,2002,26(11):57-63.
[13]
COWIE G L,HEDGES J I.Sources and reactivities of amino acids in a coastal marine environment[J].Limnology and Oceanography,1992,37(4):703-724.
LIU X Q,LI Y,WANG Z L,et al.Cruise observation of Ulva prolifera bloom in the southern Yellow Sea,China[J].Estuarine,Coastal and Shelf Science,2015,163:17-22.
KHOI C M,GUONG V T,MERCKX R.Predicting the release of mineral nitrogen from hypersaline pond sediments used for brine shrimp Artemia franciscana production in the Mekong Delta[J].Aquaculture,2006,257(1/2/3/4):221-231.
KOCH G W,SCHULZE E D,PERCIVAL F,et al.The nitrogen balance of Raphanus sativus x raphanistrum plants.II.Growth,nitrogen redistribution and photosynthesis under NO3- deprivation[J].Plant,Cell and Environment,1988,11(8):755-767.
[21]
PANTOJA S,LEE C.Amino acid remineralization and organic matter lability in Chilean coastal sediments[J].Organic Geochemistry,2003,34(8):1047-1056.
SOMMERVILLE K,PRESTON T.Characterisation of dissolved combined amino acids in marine waters[J].Rapid Communications in Mass Spectrometry,2001,15(15):1287-1290.
[30]
ARNON D I.Copper enzymes in isolated chloroplasts.Polyphenoloxidase in Beta vulgaris[J].Plant Physiology,1949,24(1):1-15.
BERG G M,GLIBERT P M,LOMAS M W,et al.Organic nitrogen uptake and growth by the chrysophyte Aureococcus anophagefferens during a brown tide event[J].Marine Biology,1997,129(2):377-387.
[35]
李倩茹,符夏梨.红树林土壤微生物与土壤酶活性分析[J].广东农业科学,2009(7):93-96.
[36]
CHIMNEY M J,PIETRO K C.Decomposition of macrophyte litter in a subtropical constructed wetland in south Florida (USA)[J].Ecological Engineering,2006,27(4):301-321.
SONG J M.Biogeochemical processes of biogenic elements in China marginal seas[M].Hangzhou:Zhejiang University Press,2011:1-662.
[39]
ZHOU M Y,CHEN X L,ZHAO H L,et al.Diversity of both the cultivable protease-producing bacteria and their extracellular proteases in the sediments of the South China Sea[J].Microbial Ecology,2009,58(3):582-590.
[40]
WANG C,YU R C,ZHOU M J.Effects of the decomposing green macroalgaUlva (Enteromorpha) prolifera on the growth of four red-tide species[J].Harmful Algae,2012,16:12-19.
[an error occurred while processing this directive] | [an error occurred while processing this directive]
